Accident Moderate Severity Resolved

CHP : Traffic Hazard on CA-4 Westbound east of G St (Antioch). 4th lane from the left blocked. Expect delays.

A injury accident was reported on CA-4 W near Contra Costa on October 15, 2026 at 12:41 AM.

Road

CA-4 W

Area

Contra Costa

Address

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Started

Oct 14, 5:41 PM

Last Updated

1 week, 5 days ago

Oct 14, 5:45 PM

Resolved

Oct 14, 11:45 PM

Coordinates

37.9984, -121.8151

Update History

1 observations

CHP : Traffic Hazard on CA-4 Westbound east of G St (Antioch). 4th lane from the left blocked. Expect delays. Oct 14, 5:45 PM

Source: 511_sfbay · ID 511.org/1563812 First seen Oct 14, 2026 5:45 PM